Photosynthetic Thermal Response in Tropical Trees Using FAsTeR method, Panamá

This dataset presents high-resolution measurements of temperature-dependent CO2 assimilation in the tropical tree species Calophyllum inophyllum, collected between February 22 and March 25, 2024, in urban areas of Panamá City, Panamá. Using the FAsTeR method (Faster Assimilation Temperature Response), we quantified leaf-level photosynthetic response curves to determine the optimal temperature at which maximum CO2 assimilation occurs. Data were gathered from five individual trees located near Metropolitano Park and the Tupper Building of the Smithsonian Tropical Research Institute. Each tree was sampled across multiple days and under two diurnal treatments—morning (AM) and afternoon (PM)—to capture temporal variation in photosynthetic performance. File names contain metadata including date, species, tree number, number of leaves, treatment time, replicate number, and method tag (FAS). Also, it is important to note that the format of this database is in that of the LI-6800, and it is necessary to use an R function to handle the data in this format. The function Read_6800.R from https://github.com/garenj/Faster-method.本数据集包含热带树种红厚壳（Calophyllum inophyllum）的温度依赖性二氧化碳同化速率高分辨率测量数据，采集时段为2024年2月22日至3月25日，采样区域位于巴拿马共和国巴拿马城城区。本研究采用FAsTeR法（Faster Assimilation Temperature Response，快速同化温度响应法），量化叶片水平的光合响应曲线，以确定二氧化碳同化速率达到最大值的最优温度。数据采集自巴拿马史密森尼热带研究所（Smithsonian Tropical Research Institute）大都会公园与塔珀大楼附近的5棵独立植株。每棵植株在多个日期分别于两个日间时段——上午（AM）与下午（PM）开展采样，以捕捉光合性能的时间变异。文件名包含元数据信息，涵盖采集日期、物种名称、植株编号、叶片数量、处理时段、重复编号以及方法标签（FAS）。此外需注意，本数据库采用LI-6800便携式光合仪的标准数据格式，需使用R语言函数处理此类格式的数据，相关Read_6800.R函数可从https://github.com/garenj/Faster-method 获取。